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Seems like you can create an email autoresponder on their website directly: https://www.mautic.org/community/index.php/274-creating-an-email-autoresponder-for-form-submission/0.
I also found an article of someone asking about how to get data: https://www.mautic.org/community/index.php/2858-forward-contact-data-via-http-get-after-form-submit/0.
Here is other link that you may use to get the form submitted data: https://medium.com/@jan_linhart/the-simplest-way-how-to-submit-a-form-data-to-mautic-1454d3afd005#.x2983soeh.
As you will need to get the data submitted, then this guide will help you with that: http://www.jotform.com/help/213-Send-POST-Data-From-JotForm-Using-PHP-in-Custom-Thank-You-Page.
Hope this helps.